Latch mechanism.



H. G. VOIGHT.

LATCH MECHANISM. APPLICATION FILED APR.26.1905.'

' Iif/ mu RS c0, WASHINGTON u PATBNTED AUG. 28, 19.06.

UNITED srnwnnr orrion.

HENRY Gr. VOIGHT, OF NEW BRITAIN,

CONNECTICUT, ASSIGNOR TO RUSSELL & ERIVIN MANUFACTURING CO., OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LATCH MECHANISM.

Specification of Letters Patent.

Patented Aug. 28, 1906.

To all whom it may concern.-

Be it known that I, HENRY G. VOIGHT, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Latch Mechanism, of which the following is a full, clear, and exact description.

My invention relates to improvements in latch mechanism, and particularly to what is termed a latch-bolt.

The object of the invention is to construct a latch-bolt of the swinging or pivoted type which will operate freely upon closing the door and will serve to hold the door in place without rattling, even though the door or frame should shrink and open up a considerable space between the edge of the door and the jamb.

The invention consists in improvements the principles of which are illustrated in the accompanying single sheet of drawings.

Briefly speaking, it comprises the employment of a pivoted member adapted to protrude through the end'plate and carrying a face member, which is substantially parallel to the door when the latch is protruded into the pocket in the striker late. The parts are so dimensioned as to cave no unnecessary openings in the face-plate and to operate by the same means as is commonly employed in look and latch mechanisms.

I have shown the invention as applied to a simple type of latch mechanism; but it is obvious that the improvement is adapted to other constructions.

Figure 1 is a plan view of a section of a latch mechanism embodying the improvements of my invention and showing the latch-bolt extended into the striker-plate. Fig. 2 is a perspective view of the latch-bolt embodying my invention.

1 indicates the fragment of a door to which the mechanism is attached.

2 and. 3 are the inner and outer frameplates of the mechanism; 1 and 5 are the inner and outer knobs carried thereby.

The mechanism may be provided with suitable key-operable locking means.

6 is the end plate, having an opening through which the latch-bolt is adapted to operate. This end plate in the particular mechanism herein shown is attached to the outer frame-plate.

7 is a latch-bolt pivoted ,to the end plate and having a suitable face for cooperation with the striker-plate.

8 is a spring for normally extending the latch-bolt.

9 is a latch-slide for the purpose of retracting the latch-bolt.

10 is a member plvoted to the latch-bolt on i a pin 11 and which bears against the edge of the opening in the end plate 6.

12 is a stationary pin or post mechanism.

13 is the bearing-face of the member 10,

which is adapted to cooperate with the mem-.v ber 12 as the position shown dotted in Fig. 1.

14 is a shoulder carried by the member 10, adapted to coact with the member 12 and stop the latch-bolt on its outward movement.

15 is a second projection carried by the member 10 and adapted to coact with the member 12 to stop the inward retraction of the latch-bolt. Since the member 10 bears against the pin 12 and the edge of the open ing in the end plate 6., it is not allowed any substantial lay, which might permit the parts to ratt e.

16 is a fragment of the frame of the door.

17 is the striker-plate, having the usual pocket for the latch-bolt.

The relative positions of the door and frame often vary by the shrinkage of the wood or otherwise. With the old ty e of pivoted latch-bolt this change of thereiative positions of the door and frame allows different amounts of play between the latch-bolt and the striker-plate when the door is closed. It is impossible to fix upon any mean position, and rattling of-the door or loose play invariably results, excepting under the most perfect conditions. In my construction, however, the member 10 of the latch-bolt when the latch-bolt isextended or protruded through the end plate presents a substantially straight bearing-surface for co action with the face of the pocket in the striker-plate and irrespective of the space between the edge of the door and the frame. When, therefore, the door is onceproperly adjusted, the parts carried by the latch-bolt is retracted into the proper relation and all rattling or lost motion prevented, the member 10 acting as a takeup device.

WVhat I claim is 1. In a latch mechanism, a slide, a pivoted latch-bolt connected thereto and having a suitable surface for cooperation with the edge of a striker-plate, and a take-up member movable with said latch-bolt but independent of said slide and having a face substan tially parallel to the frame of the mechanism when the latch-bolt is protruded.

2. In a latch mechanism, a slide, a pivoted latch-bolt connected thereto, a takeup member carried thereby and independent of said slide, and means for normally causing said take-up member to extend with its face parallel to the frame of the mechanism when the latch-bolt is extended.

3. In a latch mechanism, the combination of a slide, a pivoted latch-bolt connected thereto, but retractable independently thereof, and a pivoted take-up member movable gith said latch-bolt, for the purpose speci- 4. In a latch mechanism, the combination of a spring-pressed pivoted latch-bolt, a stationary member, a take-up member carried by the latch-bolt for coacting with said stationary member for preventing excessive inwalrd or outward movement of said latchb0 t.

5. In a latch mechanism, a pivoted latchbolt, a take-up member movably carried thereby and independent of the latch-slide, and a stationary member, said take-up member having a surface adapted to coact with said stationary member.

6. In a-latch mechanism, a face-plate having an opening, a latch-bolt pivotally mounted and adapted to protrude through said opening, a take-up member carried by said latch-bolt, and a stationary member, said take-up member coacting with said stationary member and the edge of the opening in said face-plate.

7. In a. latch mechanism, a latch-slide, a pivoted spring-pressed latch-bolt connected thereto, a take-up member pivoted to said latch-bolt, and a stationary guide for said take-up member, said take-up member having shoulders acting to limit the inward and outward movement of said. bolt, for the purpose specified.

8. In a latch mechanism, a latch-slide, a pivoted spring-pressed latclrbolt, and a takeup member movable with said latch-bolt independently of said latchslide and adapted to form a straight engaging shoulder when the latch-bolt is extended.

9. In a latch mechanism, a frame including plates adapted to the opposite sides of a door, an end. plate adapted to the edge of a door and having an opening, a pivoted latchbolt adapted to protrude through said opening, a spring directly engaging said latch-bolt and normally holding it in its protruding po sition, a latch-slide for retracting said latchbolt and a take-up member retractable with said latch-bolt, said latch-bolt being retractable independently of said slide.

10. In a latch mechanism, the combination of a pivoted latch-bolt, a striker-plate, a movable take-up member extending substantially parallel to the frame of said mechanism when said bolt is extended for cooperating between said bolt and said striker-plate, and means for retracting said bolt, said. take up member beingin d epend ent of said retracting means.

HENRY G. VOIGHT. Witnesses:

M. S. IVIARD, C. E. RUssELL. 

